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Adherence of K. kingae wild-type strain 269-492 and spreading/corroding (KK03) and nonspreading/noncorroding (KK01) variants to respiratory epithelial cells (Chang, A549, and HEp2 cells) and synovial cells (SW982 and Hig-82 cells). E. coli DH5α was used as a negative control. *, P ≤ 0.05, as determined by an unpaired t test for KK03 compared to KK01.
